16126577377117 has 4 divisors (see below), whose sum is σ = 16682666252220. Its totient is φ = 15570488502016.

The previous prime is 16126577377073. The next prime is 16126577377123. The reversal of 16126577377117 is 71177377562161.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5367613209721 + 10758964167396 = 2316811^2 + 3280086^2 .

It is a cyclic number.

It is not a de Polignac number, because 16126577377117 - 2⁷ = 16126577376989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16126577317117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 278044437508 + ... + 278044437565.

It is an arithmetic number, because the mean of its divisors is an integer number (4170666563055).

Almost surely, 2^{16126577377117} is an apocalyptic number.

It is an amenable number.

16126577377117 is a deficient number, since it is larger than the sum of its proper divisors (556088875103).

16126577377117 is an equidigital number, since it uses as much as digits as its factorization.

16126577377117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556088875102.

The product of its digits is 18151560, while the sum is 61.

The spelling of 16126577377117 in words is "sixteen trillion, one hundred twenty-six billion, five hundred seventy-seven million, three hundred seventy-seven thousand, one hundred seventeen".